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Ingo Molnar102d8322007-02-19 14:37:47 +02001#ifndef __LINUX_KVM_PARA_H
2#define __LINUX_KVM_PARA_H
3
Christian Borntraeger5f432382007-10-11 15:34:17 +02004/*
5 * This header file provides a method for making a hypercall to the host
6 * Architectures should define:
7 * - kvm_hypercall0, kvm_hypercall1...
8 * - kvm_arch_para_features
9 * - kvm_para_available
Anthony Liguori7aa81cc2007-09-17 14:57:50 -050010 */
Anthony Liguori7aa81cc2007-09-17 14:57:50 -050011
12/* Return values for hypercalls */
13#define KVM_ENOSYS 1000
Marcelo Tosatti2f333bc2008-02-22 12:21:37 -050014#define KVM_EFAULT EFAULT
15#define KVM_E2BIG E2BIG
Jan Kiszka07708c42009-08-03 18:43:28 +020016#define KVM_EPERM EPERM
Anthony Liguori7aa81cc2007-09-17 14:57:50 -050017
Marcelo Tosatti2f333bc2008-02-22 12:21:37 -050018#define KVM_HC_VAPIC_POLL_IRQ 1
19#define KVM_HC_MMU_OP 2
Alexander Graf2a342ed2010-07-29 14:47:48 +020020#define KVM_HC_FEATURES 3
Alexander Grafbeb03f12010-07-29 14:47:53 +020021#define KVM_HC_PPC_MAP_MAGIC_PAGE 4
Avi Kivityb93463a2007-10-25 16:52:32 +020022
Christian Borntraeger5f432382007-10-11 15:34:17 +020023/*
24 * hypercalls use architecture specific
Anthony Liguori7aa81cc2007-09-17 14:57:50 -050025 */
Christian Borntraeger5f432382007-10-11 15:34:17 +020026#include <asm/kvm_para.h>
Anthony Liguori7aa81cc2007-09-17 14:57:50 -050027
Glauber de Oliveira Costaa03d7f42008-01-15 13:10:15 -020028#ifdef __KERNEL__
Marcelo Tosatti0cf1bfd2008-02-22 12:21:36 -050029
Anthony Liguori7aa81cc2007-09-17 14:57:50 -050030static inline int kvm_para_has_feature(unsigned int feature)
31{
Christian Borntraeger5f432382007-10-11 15:34:17 +020032 if (kvm_arch_para_features() & (1UL << feature))
Anthony Liguori7aa81cc2007-09-17 14:57:50 -050033 return 1;
34 return 0;
35}
Christian Borntraeger5f432382007-10-11 15:34:17 +020036#endif /* __KERNEL__ */
37#endif /* __LINUX_KVM_PARA_H */
Anthony Liguori7aa81cc2007-09-17 14:57:50 -050038